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Full text of "Text Book Of Mechanical Engineering"

Steam-hammer Valves.


form. In the drawing, steam is shewn entering by the mid port,
and passing down the lower cylinder port to raise the piston; at
the same time the exhaust steam from the top of the piston is
passing down the upper port and out at K. Now (supposing the
self-acting lever H is out of gear), the piston having reached its